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The United States of America is a federal republic [1] consisting of 50 states, a federal district (Washington, D.C., the capital city of the United States), five major territories, and various minor islands. [2] [3] Both the states and the United States as a whole are each sovereign jurisdictions. [4]
It has been estimated that before European settlement, forests in the United States mainland covered nearly 1 billion acres (4,000,000 km 2). [1] Since the mid-1600s, about 300 million acres (1,200,000 km 2 ) of forest have been cleared, primarily for agriculture during the 19th century.
The United States did not have a permanent capital under the Articles of Confederation. The U.S. Constitution was ratified in 1787, and gave the Congress the power to exercise "exclusive legislation" over a district that "may, by Cession of particular States, and the acceptance of Congress, become the Seat of the Government of the United States."
This is a list of U.S. state, federal district, and territory trees, ... "State Trees and State Flowers". United States National Arboretum. July 14, 2010.
Native ash species, including white ash (pictured), have been declining rapidly this century due to predation by the emerald ash borer. [1]Silvics of North America (1991), [2] [3] a forest inventory compiled and published by the United States Forest Service, includes many hardwood trees.
What to Plant Instead of a Bradford Pear Tree. There are many beautiful native trees that are better alternatives with pretty flowers, autumn color, and attractive forms, Huber says. Just be sure ...
United States portal These are capitals of political divisions of the United States of America The capital of the USA as a whole is Washington, D.C. , see Category:Washington, D.C.
800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. For premium support please call: ... The most dangerous cities to drive in America. Paxtyn Merten. September 30, 2024 at 4:03 PM.